List of South Dakota numbered highways

Standard South Dakota highway shields Two digits: 24 in x 24 in (610 mm x 610 mm) Three digits: 30 in x 24 in (900 mm x 610 mm)
System information
Notes:	South Dakota highways are generally state-maintained.
Highway names
Interstates:	Interstate X (I-X)
US Routes:	U.S. Highway X (US X)
State:	(State) Highway X (SD X)

Contents 1 State Highways 1.1 Highways 1–10 1.2 Highways 11–20 1.3 Highways 21–30 1.4 Highways 31–40 1.5 Highways 41–50 1.6 Highways 51–60 1.7 Highways 61–70 1.8 Highways 71–80 1.9 Highways 81–100 1.10 Highways 101–200 1.11 Highways 201–300 1.12 Highways 301–400 1.13 Highways 401–1806 2 Interstate Highways 3 U.S. Highways 4 References 5 External links

South Dakota's state highways were assigned in a numbering pattern that followed that of the U.S. Highways followed upon their inception. East-west highways carried even numbers and increased from north to south – while north-south highways carried odd numbers and increased from east to west. This holds true only for 2-digit highways. 3-digit highways follow the odd-even routing, but do not sequentially remain near a "parent" route as a spur or alternate route, instead being more independent of any parent 2d route.^[1]

The Bureau of Indian Affairs maintains a set of routes within the reservations of western South Dakota – using the standard BIA shield on green background.^[1]

Decommissioned highway numbers are listed in italics.

State Highways

Highways 1–10

• South Dakota Highway 8
• South Dakota Highway 9
• South Dakota Highway 10

Highways 11–20

• South Dakota Highway 11
• South Dakota Highway 12
• South Dakota Highway 13
• South Dakota Highway 15
• South Dakota Highway 15A
• South Dakota Highway 15Y
• South Dakota Highway 16
• South Dakota Highway 16B
• South Dakota Highway 17
• South Dakota Highway 18
• South Dakota Highway 19
• South Dakota Highway 19A
• South Dakota Highway 20
• South Dakota Highway 20A
• South Dakota Highway 20 Spur

Highways 21–30

• South Dakota Highway 21
• South Dakota Highway 22
• South Dakota Highway 22 Spur
• South Dakota Highway 23
• South Dakota Highway 24
• South Dakota Highway 24A
• South Dakota Highway 25
• South Dakota Highway 26
• South Dakota Highway 27
• South Dakota Highway 28
• South Dakota Highway 30

Highways 31–40

• South Dakota Highway 32
• South Dakota Highway 34
• South Dakota Highway 35
• South Dakota Highway 36
• South Dakota Highway 37
• South Dakota Highway 37A
• South Dakota Highway 38
• South Dakota Highway 38A
• South Dakota Highway 40
• South Dakota Highway 40A

Highways 41–50

• South Dakota Highway 41
• South Dakota Highway 42
• South Dakota Highway 43
• South Dakota Highway 44
• South Dakota Highway 45
• South Dakota Highway 46
• South Dakota Highway 46 Spur
• South Dakota Highway 47
• South Dakota Highway 47W
• South Dakota Highway 48
• South Dakota Highway 49

Highways 51–60

• South Dakota Highway 50
• South Dakota Highway 52
• South Dakota Highway 53
• South Dakota Highway 54
• South Dakota Highway 55
• South Dakota Highway 59

Highways 61–70

• South Dakota Highway 61
• South Dakota Highway 63
• South Dakota Highway 65

Highways 71–80

• South Dakota Highway 71
• South Dakota Highway 73
• South Dakota Highway 75
• South Dakota Highway 79

Highways 81–100

• South Dakota Highway 81
• South Dakota Highway 83
• South Dakota Highway 85
• South Dakota Highway 87
• South Dakota Highway 89

Highways 101–200

• South Dakota Highway 100
• South Dakota Highway 101
• South Dakota Highway 102
• South Dakota Highway 103
• South Dakota Highway 105
• South Dakota Highway 106
• South Dakota Highway 109
• South Dakota Highway 115
• South Dakota Highway 116
• South Dakota Highway 123
• South Dakota Highway 127
• South Dakota Highway 130
• South Dakota Highway 134
• South Dakota Highway 136
• South Dakota Highway 139
• South Dakota Highway 144
• South Dakota Highway 147
• South Dakota Highway 153
• South Dakota Highway 158
• South Dakota Highway 168

Highways 201–300

• South Dakota Highway 203
• South Dakota Highway 204
• South Dakota Highway 214
• South Dakota Highway 218
• South Dakota Highway 224
• South Dakota Highway 230
• South Dakota Highway 232
• South Dakota Highway 235
• South Dakota Highway 236
• South Dakota Highway 238
• South Dakota Highway 239
• South Dakota Highway 240
• South Dakota Highway 244
• South Dakota Highway 245
• South Dakota Highway 247
• South Dakota Highway 248
• South Dakota Highway 249
• South Dakota Highway 251
• South Dakota Highway 253
• South Dakota Highway 258
• South Dakota Highway 262
• South Dakota Highway 264
• South Dakota Highway 271
• South Dakota Highway 273
• South Dakota Highway 296
• South Dakota Highway 298

Highways 301–400

• South Dakota Highway 314
• South Dakota Highway 324
• South Dakota Highway 365
• South Dakota Highway 377
• South Dakota Highway 391

Highways 401–1806

• South Dakota Highway 407
• South Dakota Highway 423
• South Dakota Highway 435
• South Dakota Highway 437
• South Dakota Highway 439
• South Dakota Highway 445
• South Dakota Highway 471
• South Dakota Highway 473
• South Dakota Highway 514
• South Dakota Highway 1804
• South Dakota Highway 1806

Interstate Highways

• Interstate 29
• Interstate 90
• Interstate 190
• Interstate 229

U.S. Highways

• U.S. Route 12
• U.S. Route 14
• U.S. Route 14A
• U.S. Route 16
• U.S. Route 16A
• U.S. Route 18
• U.S. Route 77
• U.S. Route 81
• U.S. Route 83
• U.S. Route 85
• U.S. Route 85E
• U.S. Route 85A
• U.S. Route 183
• U.S. Route 212
• U.S. Route 216
• U.S. Route 281
• U.S. Route 385

References

External links

• Unofficial South Dakota Highways Page

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